Window lock



Patented lieb., 27, 1923..

nirnu trarne intense d JOHN HEPPLER, 0F HIGHLAND lPAlR/K, MECHIGAN.

WINDOW LOCK.

Application led April 2l., 1921. Serial No. 463,136.

To all whom it may concern:

Be it known that LJoHN Hnrrnrin, a subject of the King of Great Britain, residing at Highland Park, Michigan, county of "Wayne, and State of Michigan, have invented certain new and useful Improvements in lVindow Locks, ofwhich the following is a specification, reference being had therein to the accompanying drawings.

This invention rela-tes to window locks, and the primary object of my invention is to provide a simple Iand durable lock by which window sashes may be locked relative to each other and also relative to the window frame in which the sashes slide. Such a lock permits of either the lower or upper sash being opened and held relative to a window frame, or both sashes may be opened and fixed relative to the window frame, thus preventing the sashes being surrept-itiously shifted by'an unauthorized person.

Another object of'my invention is to provide an inexpensive locking mechanism for window sashes and the construction of the mechanism permits of it ybeing easily operated and readily installed, without any material changes in the usual window frame and sash co-nstruction.

A further object of my invention is to provide a lock mechanism embodying inner i and outer bolt members articulated in a fashion which permits of said bolt members being simultaneously adjusted, one of said members securing a sash relative to the window frame and the other bolt member securing an adjacent sash relative to the lock carrying sash.

The above and other ob-jects are attained by a construction that will be hereinafter described and then claimed, and reference will now be had to the drawing, wherein- Fi re 1 is a longitudinalsectional view of a ook showing a manner'in which it connects the upper and lower sashes and holds said `sashes relative to a window frame;

Fig. 2 is a vertical cross sectional view of the same;

Fig. 3 is a plan of the lock mechanism in the position shown in Figs. 1 and 2; and

Fig. 4 is a perspective view of the sash lock.

The lock mechanism comprises a cylindrical casing or barrel 1 which is formed from a single blank or piece kof material bent to provide a web 2, and a lateral flange 3, said lateral 'flange being apertured so that it may be mounted on the lower sash' at the meeting rail 4, by screws 6 or other fastening means. rllhe ange 3 is mounted on the lower sash 5 above one of the side rails thereof and adjacent the window frame 7 in which the lower sash 5 slides. The flange` 3 supports the web 2 in a lvertical position and consequently maintains the casing 1 elevated relative to the meeting rail 4.

The material at the inner end of the casing 1 is inbent to aii'ord an end guide or abutment 8 and in the outer end of the casing 1 is mounted an end guide 9. The guides 8 and 9 support a reciprocable inner bolt member 10. The outer end of the inner bolt member 10 is slightly tapered or beveled and adapted to enter thimbles or sockets 11 mounted in the window frame 7, these thimbles or sockets being flush with the side of the window frame so as to not interfere with adjustment of the lower sash 4. The thimbles or sockets 11 are spaced apart so that the lower sash 5 may be locked relative to the frame 7 at desired elevations. In some instances the thimbles cr sockets may be dispensed with and the window frame 7 provided with bored recesses to receive the end of the bolt 10.

The inner end of the bolt 10 has a suitable knob or handle 12 which may be gripped when it is desired to rock or slide the bolt 10 relative to the casing 1, said knob -or handle serving as a stop against the guide or abutment 8 to limit the outward movement of the bolt 10.

Extending transversely of the bolt 10 is a pin 13 and encircling said bolt, between the pin 13 and the end abutment 8 is a coiled expansion spring 14. The expansive forceof said spring is adapted to shift the bolt 10 to a locked position so that it will be necessary to pull outwardly on the knob or handle 12 when the bolt is to be retracted. In order that the bolt 10 may be set in a retracted or unlocked position, the casing l is provided with a lbayonet shaped slot 15 through which the pin 13 extends, and by turning the bolt 10 so that the other end of the pin 13 engages the lateral or transverse ortion of the slot 15, the spring 14 will be eld under tension with the bolt 10 retracted.

Slidable on the casing 1 is the guide barrel portion 16 of anouter bolt mem er 17, said outer bolt member and said guide barrel 16 being made of a single piece of material bent to provide an intermediate lateral portion 18 somewhat similar to the web `2 and. the flange 3 of the casing 1. The lateral portion 18 of the outer bolt member may slide on the meeting rail 4 and against the web 2, and with the outer bolt member 17 upstanding and overhanging the meeting rail 4 it is adapted to'enter keepers 19 of a keeper strip 20 suitably'connected tothe side rail 21 of an upper sash 22. The-keepers 19 are equally spaced throughout the length of thefkeeperv 10 fthe side rail 21 by screws23 orother fasstrip 20 and saidstrip maybev connected to tening means. 'The keeper'strp may be of any length and positi'ne'd'at any place on the side rail 21, so long as the outer bolt member 17 may 'enter-one of the keepers 19 and connect the `upper and' lower sashes toether, either so that both of said sashes may f e adjusted in lsynchronism or connected so .as to be locked iby the.. inner bolt member 10 relative to the. window frame`7.

By reference to'-Figs.. 1 and 4, it will be x noted that the'pin-13 extends through the guide barrel portion 16 of the outer bolt .expansion spring 14, but serves as a coupling rmember between the' inner andouter bolt members. To avoid turning the outer bolt member 17, when the innerfbolt member 10 1 is tobe set in a retracted position, the guide member or 'ortion 16 of the outer bolt member 17 may. ave -a transverse slot 24 in which the outer end ofthe pin 13 is free to move without destroying-the connection between the. inner and outerfbolt members for move- 1.V A window lock adapted to simultane-l ously lock upper and lower sashes relative to each other and said sash'esrelative to a Window frame, comprisinga casing, an inner bolt member slidable in said casing adapted to engage the window frame, and an outer bolt member slidable on said casing to en-.

lower sash, a frame engaging bolt in said casing, a sash engaging bolt on said casing, said bolts being about a common axis and reciprocable in like directions and means connectin said bolts so that the frame engaging bo t may shift the sash engaging bolt.

4. A window lock as in claim 3, characterized b -said bolts being connected by means exten ing through a Wall of said casing and permitting of sald bolts being set in retracted positions.

5. A Window lock as in claim 3, and means in said casing about the frame engaging bolt adapted to simultaneously ext-.end botli bolts for locking purposes. v

' In testimony whereof I affix my signature in presence of two witnesses.

JOHN HEPPLER. Witnesses KARL H. BUTLER, ANNA M. DORR.

Afor attachment to the meeting rail of the 

